A nurse is preparing to complete a comprehensive assessment on a client. When collecting objective data, what would the nurse do first?

Comprehensive physical assessment follows a systematic sequence to obtain objective data reflecting physiologic and neurologic status. Objective data are measurable findings obtained through inspection, palpation, percussion, and auscultation. The initial step prioritizes global observation to establish baseline clinical impressions before proceeding to focused measurements and system-specific assessments, ensuring accurate interpretation of subsequent findings. Rationale: A. Body measurements such as height, weight, and BMI are components of quantitative anthropometric assessment. These are collected after initial general observation because they require patient positioning and equipment. They do not provide the first global impression of physiologic stability or appearance. B. Overall appearance is assessed first through inspection, evaluating general distress, hygiene, posture, and level of consciousness. This provides immediate clinical information about acute illness or stability. It establishes baseline objective visual data before detailed system-specific measurements are performed. C. Mental status is assessed after general observation and is part of a structured neurological evaluation. It includes orientation, cognition, and behavior assessment. Although important, it is not the initial step in collecting objective data during a comprehensive physical examination. D. Vital signs are essential indicators of physiologic stability, including temperature, pulse, respiration, and blood pressure. However, they are measured after initial inspection to guide urgency and interpretation. They do not precede overall appearance assessment in a systematic head-to-toe examination.